数字农科院2.0

Differential impacts of nitrogen addition on soil dissolved organic carbon in humid and non-humid regions: A global meta-analysis

文献类型： 外文期刊

作者： Tianjing Ren;Bożena Smreczak;Aleksandra Ukalska-Jaruga;Xiaojie Li;Waseem Hassan;Andong Cai

作者机构：

关键词： Driving factors;Humid regions;Nitrogen addition;Non-humid regions;Soil dissolved organic carbon

期刊名称： Journal of Environmental Management

ISSN： 0301-4797

年卷期： 2025 年 377 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Soil dissolved organic carbon (DOC) is the most active carbon pool, providing essential carbon and energy to soil microorganisms while playing a crucial role in carbon sequestration, transport, and stabilization in soils. Nitrogen (N) addition, a key factor influencing terrestrial carbon cycling, can significantly alter soil DOC dynamics. However, the global patterns and underlying drivers of DOC responses to N addition, particularly across regions with varying aridity indices, remain unclear. This study analyzed 1132 paired observations from 103 independent studies to quantify the response pattern of DOC to N addition in humid (554 observations) and non-humid (574 observations) regions and identify the factors driving these effects. The findings revealed an asymmetrical effect of N addition on soil DOC between humid and non-humid regions, rather than on microbial biomass carbon (MBC) or soil organic carbon (SOC). Specifically, N addition significantly decreased soil DOC (−2.49%) in humid regions, while it increased DOC (7.30%) in non-humid regions. The effect size of soil DOC decreased linearly with the ratio of MBC to SOC in humid regions but increased linearly in non-humid regions. In humid regions, soil DOC response was positively correlated with initial MBC and inversely correlated with initial soil pH, whereas the opposite trend was observed in non-humid regions. Seasonal precipitation variability was identified as a significant driver of soil DOC response, independent of temperature, soil properties, and N addition rates. Moreover, initial SOC content was the primary driving factor for soil DOC response in humid regions, while the N addition rates were the primary driver in non-humid regions. These findings have important implications for enhancing soil carbon pool management, improving global carbon models, and addressing climate change, particularly under varying climatic conditions.

分类号：

  • 相关文献

[1]Dissolved organic carbon in cropland soils: A global meta-analysis of management effects. Tianjing Ren,Aleksandra Ukalska-Jaruga,Bożena Smreczak,Andong Cai. 2024

[2]Effects of Different Straw Return Methods on Farmland Carbon Footprint and Water Footprint. Lu Hua,Yang Gao,Dingyang Li,Zhenxing Yang,Zhiping Liu. 2025

[3]N-Fertilizer-Driven Association Between The Arbuscular M.ycorrhizal Fungal Community And D iazotrophic Community Impacts Wheat Yield. Tian, Guangli,Luo, Gongwen,Wang, Min,Tian, Guangli,Shen, Qirong,Kong, Yali,Zhu, Chen,Ling, Ning,Guo, Shiwei,Guo, Junjie. 2018

[4]Interactions of water and nitrogen addition on soil microbial community composition and functional diversity depending on the inter-annual precipitation in a Chinese steppe. Sun Liang-jie,Qi Yu-chun,Dong Yun-she,He Ya-ting,Peng Qin,Liu Xin-chao,Jia Jun-qiang,Guo Shu-fang,Cao Cong-cong,Sun Liang-jie,Liu Xin-chao,Jia Jun-qiang,Guo Shu-fang,Cao Cong-cong,He Ya-ting. 2015

[5]Belowground net primary productivity and biomass allocation in response to different restoration measures in a salt-alkali-degraded Songnen meadow. Dongxue Tao,Taiping Chen,Yan Luo,Honghui Wu,Xinyu Wang,Jing Wang,Yingzhi Gao. 2021

[6]Mowing increased plant diversity but not soil microbial biomass under N-enriched environment in a temperate grassland. Ning, Qiushi,Jiang, Liangchao,Niu, Guoxiang,Yu, Qiang,Liu, Jushan,Wang, Ruzhen,Liao, Sha,Huang, Jianhui,Han, Xingguo,Yang, Junjie. 2022

[7]N Addition Overwhelmed the Effects of P Addition on the Soil C, N, and P Cycling Genes in Alpine Meadow of the Qinghai-Tibetan Plateau. Jiannan Xiao,Shikui Dong,Hao Shen,Shuai Li,Kelly Wessell,Shiliang Liu,Wei Li,Yangliu Zhi,Zhiyuan Mu,Hongbo Li. 2022

[8]Contrasting effects of plant inter- and intraspecific variation on community trait responses to nitrogen addition and drought in typical and meadow steppes. Aixia Guo,Xiaoan Zuo,Senxi Zhang,Ya Hu,Ping Yue,Peng Lv,Xiangyun Li,Shenglong Zhao,Qiang Yu. 2022

[9]Effects of winter grazing and N addition on soil phosphorus fractions in an alpine grassland on the Qinghai-Tibet Plateau. Zhen Huan Guan,Zuonan Cao,Xiao Gang Li,Peter Kühn,Guozheng Hu,Thomas Scholten,Jianxiao Zhu,Jin Sheng He. 2023

[10]Temporal coupling of plant and microbial nitrogen uptake and plant nitrogen reallocation improve grassland nitrogen retention under nitrogen addition. Jirui Gong,Biao Wang,Zihe Zhang,Liangyuan Song,Siqi Zhang,Weiyuan Zhang,Jiaojiao Dong,Xuede Dong,Yingying Liu,Yuchun Yan. 2024

[11]Mechanisms underlying the negative effects of nitrogen addition on soil nematode communities in global grassland ecosystems. Wen Xing,Xiaoming Lu,Shoubao Geng,Jingyi Ding,Yongfei Bai. 2023

[12]Warming intensified the effects of nitrogen addition on N2O emissions from alpine meadow in the northern Qinghai-Tibet Plateau. Li, Ming-Jie,Ge, Yi-Qing,Ganjurjav, Hasbagan,Hu, Guo-Zheng,Wu, Hong-Bao,Yan, Jun,He, Shi-Cheng,Gao, Qing-Zhu. 2024

[13]Synergistic effects of multiple global change drivers on terrestrial ecosystem carbon sink. Tang, Shiming,Tian, Dashuan,Wang, Jinsong,Zhang, Ruiyang,Wang, Song,Song, Jian,Wan, Shiqiang,Zhang, Jinxin,Zhang, Shuang,Li, Zhaolei,Niu, Shuli. 2024

[14]Effects of nitrogen and water addition on ecosystem carbon fluxes in a heavily degraded desert steppe. Chao Wen,Yumei Shan,Tingting Xing,Li Liu,Guomei Yin,Ruhan Ye,Xinchao Liu,Hong Chang,Fengyan Yi,Sibo Liu,Pujin Zhang,Jianhui Huang,Taogetao Baoyin. 2024

[15]Nitrogen addition-driven soil organic carbon stability depends on the fractions of particulate and mineral-associated organic carbon. Xu, Yulin,Zhao, Yuqing,Cha, Xinyu,Yang, Wanlin,Zheng, Mengtao,Liu, Shuang,Wang, Yuxiao,Cai, Andong,Han, Xinhui,Yang, Gaihe,Ren, Chengjie. 2024

[16]Global patterns of the interactive effects of N and P enrichment on terrestrial microbial biomass. Li S.,Zhang S.,Tang S.,Duan S.,Shao Q.,Zhan Q.,Jin K.. 2024

[17]Vertical distribution and driving mechanisms of soil microarthropods in a Stipa baicalensis meadow steppe under long-term nitrogen addition. Wu Z.,Ma S.,Lu J.,Ye H.,Yang D.,Hong M.. 2024

[18]pH threshold in controlling dominant nitrification pathway in acidic soils. Cao, Miaomiao,Li, Yong,Zhang, Yuxuan,Yu, Debang,Uwiragiye, Yves,Wang, Jing,Jing, Hang,Tang, Quan,Qian, Yinfei,Elrys, Ahmed S.,Cheng, Yi,Cai, Zucong,Xu, Minggang,Mueller, Christoph. 2024

[19]Intraspecific differentiation and phenotypic plasticity help the invasive success of Xanthium italicum. Zhao, Zhilong,Yu, Jinyang,Zhao, Wenxuan,Ma, Miao,Tang, Jieshi. 2025

[20]Resin-coated urea effectively simulates the chronic dynamics of natural nitrogen deposition. Zhao, Yi,Ke, Yuguang,Wu, Honghui,Xu, Chong,Li, Xiwen,Hautier, Yann,Borer, Elizabeth T.,Yu, Qiang. 2025

作者其他论文 更多>>